Senior Data Scientist

The LEGO Group

London, UK

present - 2020

• Build Bayesian models to explain and attribute brand strength.
• Improved workflows and codebase quality by introducing software development best practices.
• Mentored and coached team in package building, test driven development, production-level code etc.
• Wrote several internal packages (e.g. {ggplot2} theme, internal utilities, etc)

Data Scientist

Mango Solutions

London, UK

2020 - 2018

• Built a modularised / packaged Shiny app and an R package for exploring clinical trials data (covering both graphs and tables).
• Built data-cleaning and wrangling pipelines flowing into machine learning processes.
• Developed client R packages to handle tasks, such as: reporting, data ingestion, data cleaning, data wrangling, feature engineering and predictive modelling.
• Predicted propensity to churn for a client in the leisure industry using gradient boosted trees.
• Forecasted sales of several drug-country combinations for a pharmaceutical company using various time series and machine learning models.
• Developed and improved R training materials.
• Tested multiple R packages using the {testthat} testing framework as part of ValidR.

Data Scientist/ Statistician

Department for Business, Energy and Industrial Strategy

London, UK

2017 - 2016

• Improved the robustness of the UK business register data by using metadata to assess its quality and revamping some outdated imputation methodology.
• Linked education and revenue data for the first time in the UK to chart the transition of graduates into the workplace (the Longitudinal Education Outcome dataset).
• Automated the production of official statistical publications by moving from SPSS, Excel, and Word to SQL, R and RMarkdown.
• Built a geospatial machine learning model using a density-based spatial clustering algorithm to inform the UK industrial strategy.
• Created and delivered introductory-level training courses in R and QGIS.

Assistant Manager

Cycle Surgery

London, UK

2015 - 2014

• Ran one of the biggest cycling shops in London with 20+ staff. Increased year-on-year turnover by 20 percent.

Analyst

Romanian Financial Supervisory Authority

Bucharest, RO

2013 - 2007

• Represented the Commission and Romania in technical working groups at EU and national level.
• Gathered, interpreted, analysed data and developed solutions to policy challenges.
• Produced and delivered research insights into relevant areas (e.g carbon trading, investor protection, etc.).

Programme Manager

Center for Protected Areas and Sustainable Development - Bihor

Oradea, RO

2005 - 2004

• Coordinated the most complex programme of the NGO: the Apuseni Experience ecotourism programme. Designed, developed and implemented its first business plan.

MSc Environmental Sciences and Policy

Central European University

Budapest, HU

2006 - 2005

• Outstanding Academic Achievement Award (highest GPA)

BA Sociology with Statistics

Babes-Bolyai University

Cluj-Napoca, RO

2003 - 1999